| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device capable of correcting a slip with a delay generated in a detector and/or control part reflected. <P>SOLUTION: A control part 18 acquires an actual position of a driven body 12 by using a position θ<SB POS="POST">D</SB>of the driven body 12 at a passing time t<SB POS="POST">0</SB>when the driven body 12 passes a detector 16 and using at least either one of a first distance Δθ<SB POS="POST">d</SB>and a second distance Δθ<SB POS="POST">r</SB>, where the first distance is a moving distance of the driven body 12 in a detection delay period Δt<SB POS="POST">d</SB>from the passing time t<SB POS="POST">0</SB>to an output time of the detector 16 outputting a detection signal and the second distance is a moving distance of the driven body in an acquisition delay period Δt<SB POS="POST">r</SB>from the output time to an acquisition time t<SB POS="POST">1</SB>when the control part 18 acquires the detection signal. The control part 18 further acquires a theoretical position of the driven body 12 at the acquisition time t<SB POS="POST">1</SB>that is determined by a drive signal (the number of pulses) output to a motor 14 from the drive start time of the driven body 12 to the acquisition time t<SB POS="POST">1</SB>and determines a drive signal after the acquisition time t<SB POS="POST">1</SB>on the basis of the difference between the actual position and the theoretical position. <P>COPYRIGHT: (C)2012,JPO&INPIT |
